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Video Cassette Recorder Service VR750 /02,07,16,58 Service VR752 /07,16,58 Service Service Manual Contents Survey of versions: PAL B/G Chapter PAL I, UK/IRELAND PAL B/G, Spain Sec. 1: Adjustment Procedure PAL/SECAM-BG+PAL/SECAM-L/L',FRANCE Schematic Diagrams and CBA's Exploded Views PAL-BG/DK+SECAM-BG/DK,EAST-EURO Mechanical and Electrical Parts Lists Sec.
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OPERATING CONTROLS AND FUNCTIONS [ VR750/ (02, 16), VR752/16 ] The remote control Buttons for VCR feature only STANDBY/ON To record the TV channel selected at this moment. STANDBY/ON To switch off or on, interrupt menu function. 0..9 Press to select channels at VCR.
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Front of your VCR To switch off or on, interrupt menu function. STANDBY/ON PROGRAMME+ PROGRAMME- To select the programme number. During nor- mal or slow motion playback, press to adjust the tracking. RECORD To record the TV channel selected at this moment. FWD.
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[ VR750/07, VR752/07 ] The remote control Buttons for VCR feature only STANDBY/ON To record the TV channel selected at this moment. STANDBY/ON To switch off or on, interrupt menu function. 0..9 Press to select channels at VCR. P– To select the programme number. During normal or slow motion playback, press to adjust the tracking.
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Front of your STANDBY/ON To switch off or on, interrupt menu function. PROGRAMME+ PROGRAMME- To select the programme number. During nor- mal or slow motion playback, press to adjust the tracking. RECORD To record the TV channel selected at this moment. FWD.
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[ VR750/58, VR752/58 ] The remote control Buttons for VCR feature only STANDBY/ON To record the TV channel selected at this moment. STANDBY/ON To switch off or on, interrupt menu function. 0..9 Press to select channels at VCR. P– To select the programme number. During normal or slow motion playback, press to adjust the tracking.
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Front of your To switch off or on, interrupt menu function. STANDBY/ON PROGRAMME+ PROGRAMME- To select the programme number. During normal or slow motion playback, press to adjust the tracking. RECORD To record the TV channel selected at this moment. FWD.
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SIGNAL NAME ABBREVIATIONS [ VR750/ (02, 07, 16, 58), VR752/ (07, 16, 58) ] Signal Name Function Signal Name Function Color Phase Rotary Changeover C-ROTA SIgnal SCART 16Pin Control Signal C-SYNC Composite Synchronized Pulse SCART 1 8Pin Output Control 8POUT-1...
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Signal Name Function Signal Name Function KEY-1 Key Scan Input Signal 1 TIMER+5V +5V at Timer KEY-2 Key Scan Input Signal 2 TU-AUDIO Tuner Audio Input Signal Deck Mode Position Detector TU-VIDEO Tuner Video Input Signal LD-SW Signal V(L) Video L Head LINE-MUTE Audio Mute Control Signal V(R)
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CABINET DISASSEMBLY INSTRUCTIONS [ VR750/ (02, 07, 16, 58), VR752/ (07, 16, 58) ] 1. Disassembly Flowchart (1): Identification (location) No. of parts in the figures (2): Name of the part This flowchart indicates the disassembly steps to gain (3): Figure Number for reference access to item(s) to be serviced.
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(S-2) (S-2) (S-3) (S-3) (S-2) (S-1) (S-4) (S-1) (S-3) (S-2) [1] Top Case [3] VCR Chassis Unit (S-1) Fig. D1 (L-3) (L-2) Fig. D3 [4] Jack CBA (S-5) Desolder [2] Front Assembly (L-2) (L-1) Fig. D2 Fig. D4 1-7-5 HG490DC...
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[7] Cylinder Shield Cylinder Assembly FE Head (S-7) ACE Head SW507 Assembly LD-SW [6] Main CBA [8] Rear Panel (L-4) [5] Deck [5] Deck Assembly Assembly Cam Gear Hole Shaft [6] Main CBA (S-6) Hole LD-SW [6] Main CBA Fig. D6 (S-6) TOP VIEW From...
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Power Supply Block Diagram HG490BLP 1-9-10...
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[ VR750/ (02, 07, 16, 58), VR752/ (07, 16, 58) ] Main 1/7 Schematic Diagram Parts Location Guide Ref No. Position Ref No. Position Ref No. Position CAPACITORS CONNECTORS RESISTORS C501 CL501 R524 C502 CL502 R525 C506 CL504 R526 C508...
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2.39 ~ 2.90V ---------------- -------------- 2.90 ~ 3.60V SENS-INH -------------- 3.60 ~ 4.30V ---------------- -------------- 4.30 ~ 5.00V KEY OFF KEY OFF Comparison Chart of Models and Marks MODEL MARK VR750/02 VR750/07 VR750/16 VR750/58 VR752/07 VR752/16 VR752/58 1-10-33 1-10-32 HG490SCM1...
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PLAY MODE REC MODE (2.5) THE SAME VOLTAGE FOR INDICATES THAT THE VOLTAGE BOTH PLAY & REC MODES. IS NOT CONSISTENT HERE. Comparison Chart of Models and Marks MODEL MARK VR750/02 VR750/07 VR750/16 VR750/58 VR752/07 VR752/16 VR752/58 1-10-35 1-10-34 HG490SCM2...
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MAIN 3/7 Schematic Diagram Parts Location Guide Ref No. Position Ref No. Position Ref No. Position Ref No. Position CAPACITORS CAPACITORS TRANSISTORS RESISTORS C251 C346 Q402 R401 C252 C347 Q403 R402 C253 C351 Q405 R403 C254 C352 Q406 R404 C302 C401 Q771 R407...
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“ “ = SMD PLAY MODE Models and Marks REC MODE (2.5) MODEL MARK THE SAME VOLTAGE FOR INDICATES THAT THE VOLTAGE VR750/02 BOTH PLAY & REC MODES. IS NOT CONSISTENT HERE. VR750/07 VR750/16 VR750/58 VR752/07 VR752/16 VR752/58 1-10-38 1-10-39...
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Main 4/7 & Jack Schematic Diagrams MODE: SP/REC “ “ = SMD PLAY MODE REC MODE (2.5) INDICATES THAT THE VOLTAGE THE SAME VOLTAGE FOR BOTH PLAY & REC MODES. IS NOT CONSISTENT HERE. HG490SCM4 1-10-40 1-10-41...
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MAIN 4/7 Schematic Diagram Parts Location Guide Ref No. Position Ref No. Position CAPACITORS RESISTORS C157 R158 C158 R756 C756 R757 C757 R758 CONNECTORS R759 CL151 MISCELLANEOUS CL152 JK756 DIODES JK757 D153 JK758 D154 TEST POINT D155 D156 TRANSISTOR Q153 JACK Schematic Diagram Parts Location Guide Ref No.
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MAIN 5/7 Schematic Diagram Parts Location Guide Ref No. Position Ref No. Position Ref No. Position CAPACITORS DIODES RESISTORS C002 D021 R008 C003 D051 BB-2 R009 C004 D052 CC-3 R011 C005 D053 BB-2 R012 C006 D055 BB-2 R013 C007 D056 AA-2 R014 C008...
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Comparison Chart of Models and Marks MODEL MARK CAUTION ! CAUTION ! VR750/02 MODE: SP/REC PLAY MODE For continued protection against fire hazard, Fixed voltage ( or Auto voltage selectable ) power supply circuit is used in this unit. VR750/07 REC MODE replace only with the same type fuse.
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Main 6/7 Schematic Diagram MODE: SP/REC PLAY MODE REC MODE (2.5) INDICATES THAT THE VOLTAGE THE SAME VOLTAGE FOR BOTH PLAY & REC MODES. IS NOT CONSISTENT HERE. “ “ = SMD MAIN 6/7 Schematic Diagram Parts Location Guide Ref No. Position Ref No.
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Main CBA Top View CAUTION ! BECAUSE A HOT CHASSIS GROUND IS PRESENT IN THE POWER CAUTION ! For continued protection against fire hazard, SUPPLY CIRCUIT , AN ISOLATION TRANSFORMER MUST BE USED. Fixed voltage ( or Auto voltage selectable ) power supply circuit is used in this unit. replace only with the same type fuse.
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Main CBA Bottom View CAUTION ! BECAUSE A HOT CHASSIS GROUND IS PRESENT IN THE POWER CAUTION ! For continued protection against fire hazard, SUPPLY CIRCUIT , AN ISOLATION TRANSFORMER MUST BE USED. Fixed voltage ( or Auto voltage selectable ) power supply circuit is used in this unit. replace only with the same type fuse.
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Main CBA Parts Location Guide Ref No. Position Ref No. Position Ref No. Position Ref No. Position Ref No. Position Ref No. Position Ref No. Position Ref No. Position Ref No. Position CAPACITORS CAPACITORS CAPACITORS CAPACITORS COILS RESISTORS RESISTORS RESISTORS RESISTORS C002 C338...
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Jack CBA Top View Jack CBA Parts Location Guide Ref No. Position Ref No. Position CAPACITORS TRANSISTORS C101 Q101 C102 Q102 C103 RESISTORS C104 R101 C105 R103 C107 R104 C108 R106 C109 R108 C110 R109 C111 R110 C112 R112 C113 R113 C115 R115...
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Comparison Chart of MODE: SP/REC “ “ = SMD Models and Marks PLAY MODE REC MODE MODEL MARK (2.5) VR750/02 THE SAME VOLTAGE FOR INDICATES THAT THE VOLTAGE IS NOT CONSISTENT HERE. BOTH PLAY & REC MODES. VR750/07 VR750/16 VR750/58 VR752/07 VR752/16...
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AFV CBA Top View AFV CBA Bottom View AFV CBA Parts Location Guide Ref No. Position CAPACITORS CONNECTORS DIODE COILS RESISTORS CRYSTAL OSCILLATOR 1-10-61 1-10-60 BHC400F01093...
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IC PIN FUNCTION DESCRIPTIONS [ VR750/ (02, 07, 16, 58), VR752/ (07, 16, 58) ] Comparison Chart of Models and Marks Signal Active Mark Function Name Level Model Mark REMOCO Remote VR750/02 N-IN Control Sensor VR750/07 Color Phase Rotary VR750/16...
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Signal Active Signal Active Mark Function Mark Function Name Level Name Level Comparator Input of Video FTV-IN Main Clock Signal for X-IN Input Follow TV Main Clock N.U. Not Used OUT X-OUT Input Capstan Vss(GND) OUT C-POW- Power Switching N.U. Not Used Pulse N.U.
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Signal Active Mark Function Name Level Power Voltage P-DOWN- Down Detector Signal Capstan Motor Rotation C-FG PULSE Detection Pulse N.U. Not Used N.U. Not Used Drum Motor PULSE D-PFG Pulse Generator AMPVRE V-Ref for CTL F OUT AMPVRE V-Ref for CTL F IN P80/C P80/C...
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PRODUCT SAFETY NOTE: Products marked with a h have special characteristics important to safety. Before replacing any of these components, read carefully the product safety notice in this service manual. Don't degrade the safety of the product through improper servicing. NOTES: Parts that not assigned part numbers (-----------) are not available.
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ELECTRICAL PARTS LIST Pos. 12 NC Description C157 ELECTROLYTIC CAP. 1UF/50V M H7 C158 CHIP CERAMIC CAP. B K 1000PF/50V C251 ELECTROLYTIC CAP. 10UF/16V M H7 C252 CHIP CERAMIC CAP. B K 1000PF/50V C253 ELECTROLYTIC CAP. 1UF/50V M H7 C254 CHIP CERAMIC CAP.(1608) F Z 0.1UF/50V C302 CHIP CERAMIC CAP.(1608) B K 0.022UF/50V...
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ELECTRICAL PARTS LIST Pos. 12 NC Description C415 ELECTROLYTIC CAP. 10UF/16V M H7 C416 CHIP CERAMIC CAP.(1608) F Z 0.1UF/50V C417 CHIP CERAMIC CAP.(1608) B K 0.022UF/50V C418 CHIP CERAMIC CAP.(1608) CH J 33PF/50V C419 CHIP CERAMIC CAP.(1608) B K 4700PF/50V C421 ELECTROLYTIC CAP.
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ELECTRICAL PARTS LIST Pos. 12 NC Description C516 CHIP CERAMIC CAP. CH J 18PF/50V C517 CHIP CERAMIC CAP.(1608) B K 4700PF/50V C518 CHIP CERAMIC CAP.(1608) B K 0.047UF/50V C519 CHIP CERAMIC CAP.(1608) B K 0.01UF/50V C520 CHIP CERAMIC CAP.(1608) CH J 100PF/50V C521 CHIP CERAMIC CAP.
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[ VR750/ (02, 07, 16, 58), VR752/ (07, 16, 58) ] Cabinet 2L011 2L011 2B18 2L011 See Electrical Parts List for parts with this mark. Some Ref. Numbers are not in sequence. 2L011 2B10 JACK CBA 2L012 2L011 2L022 2L042...
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[ VR750/ (02, 07, 16, 58), VR752/ (07, 16, 58) ] Packing Some Ref. Numbers are not in sequence. Some Ref. Numbers are not in sequence. X20A X20B X20C X20D X20E X20F [ F,H,K ] [ G,J ] [ F,H,I,K,L ]...
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PRODUCT SAFETY NOTE: Products marked with a h have special characteristics important to safety. Before replacing any of these components, read carefully the product safety notice in this service manual. Don’t degrade the safety of the product through improper servicing. MECHANICAL PARTS LIST Pos.
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MECHANICAL PARTS LIST Pos. 12 NC Description 2L099 9965 000 13027 SCREW, P-TIGHT M3X8 BIND HEAD+ PACKING GIFT BOX CARTON HG490ED GIFT BOX CARTON HG491BD GIFT BOX CARTON HG495BD GIFT BOX CARTON HG496ED STYROFOAM HG470ED STYROFOAM(U29UK) HG471BD UNIT, BAG E5500UD AC PAD HC461BD ACCESSORY PAD HE470ED 9965 000 23379 REMOTE CONTROL UNIT 364/CZF29UU...
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Video Cassette Recorder Service VR550 /02/07/16 Service Service Service Manual Contents Survey of versions: PAL B/G Chapter PAL I, UK/IRELAND PAL B/G, Spain Sec. 1: Adjustment Procedure PAL/SECAM-BG+PAL/SECAM-L/L',FRANCE Schematic Diagrams and CBA's Exploded Views PAL-BG/DK+SECAM-BG/DK,EAST-EURO Mechanical and Electrical Parts Lists Sec.
MAIN SECTION VIDEO CASSETTE RECORDER Sec. 1: Main Section I Adjustment Procedures I Schematic Diagrams and CBA’s I Exploded Views I Mechanical and Electrical Parts List TABLE OF CONTENTS IMPORTANT SAFETY PRECAUTIONS ............1-1-1 STANDARD NOTES FOR SERVICING .
IMPORTANT SAFETY PRECAUTIONS Product Safety Notice J. Use care that foreign objects (screws, solder drop- lets, etc.) do not remain inside the set. Some electrical and mechanical parts have special K. Crimp type wire connector safety-related characteristics which are often not evi- The power transformer uses crimp type connectors dent from visual inspection, nor can the protection they which connect the power cord and the primary side...
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Safety Check after Servicing Chassis or Secondary Conductor Examine the area surrounding the repaired location for damage or deterioration. Observe that screws, parts, and wires have been returned to their original posi- Primary Circuit Terminals tions. Afterwards, do the following tests and confirm the specified values to verify compliance with safety standards.
STANDARD NOTES FOR SERVICING Circuit Board Indications Pb (Lead) Free Solder When soldering, be sure to use the Pb free solder. a. The output pin of the 3 pin Regulator ICs is indi- cated as shown. How to Remove / Install Flat Pack-IC Top View Bottom View 1.
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3. The flat pack-IC on the CBA is affixed with glue, so With Soldering Iron: be careful not to break or damage the foil of each (1) Using desoldering braid, remove the solder from all pin or the solder lands under the IC when removing pins of the flat pack-IC.
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(4) Bottom of the flat pack-IC is fixed with glue to the 2. Installation CBA; when removing entire flat pack-IC, first apply (1) Using desoldering braid, remove the solder from soldering iron to center of the flat pack-IC and heat the foil of each pin of the flat pack-IC on the CBA so up.
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Instructions for Handling Semi-conductors Electrostatic breakdown of the semi-conductors may occur due to a potential difference caused by electro- static charge during unpacking or repair work. 1. Ground for Human Body Be sure to wear a grounding band (1MΩ) that is prop- erly grounded to remove any static electricity that may be charged on the body.
FUNCTION INDICATOR SYMBOLS Note: The following symbols will appear on the indicator panel to indicate the current mode or operation of the VCR. On-screen modes will also be momentarily displayed on the tv screen when you press the operation buttons. Display panel MODE INDICATOR ACTIVE...
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TV screen Note: OSD for mechanical error will be displayed for 5 sec. after the mechanical error occurs. When reel and capstan mechanism is not functioning When the drum is not working properly correctly EJECT R EJECT D Fig. 1 Fig.
PREPARATION FOR SERVICING How to Enter the Service Mode About Optical Sensors Caution: An optical sensor system is used for the Tape Start and End Sensors on this equipment. Carefully read and follow the instructions below. Otherwise the unit may operate erratically. What to do for preparation Insert a tape into the Deck Mechanism Assembly and press the PLAY button.
To eliminate the TV’s sound. Press again to restore the volume. – TV-VOL TV-VOL To adjust the TV’s volume. TV-PROG. + TV-PROG. – To select a programme number on the TV. You can use this remote control to operate some functions of Philips TVs. 1-5-1 HG470IB...
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Front of your VCR STANDBY/ON PROGRAMME RECORD STOP/EJECT PLAY To switch off or on, interrupt menu function. STANDBY/ON PROGRAMME+ PROGRAMME- To select the programme number. During normal or slow motion playback, press to adjust the tracking. RECORD To record the TV channel selected at this moment. FWD.
SIGNAL NAME ABBREVIATIONS Signal Name Function Signal Name Function CLKSEL Clock Select (GND) SCART 16Pin Control Signal Playback/Record Control Signal CTL (+) SCART 1 8Pin Output Control 8POUT-1 Signal Playback/Record Control Signal CTL (-) SCART 2 8Pin Output Control 8POUT-2 Signal CTLAMPout To Monitor for CTL AMP Output...
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Signal Name Function Signal Name Function MOD-A Modulator Audio Output Signal Video Envelope Comparator V-ENV Signal N-A-PB Normal Audio Playback V-IN Video Signal Input N-A-REC Normal Audio Recording V-OUT Video Signal Output OSCin Clock Input for letter size OSCout Clock Output for letter size VIDEO Video Signal OSD-V-IN...
CABINET DISASSEMBLY INSTRUCTIONS 1. Disassembly Flowchart (1): Identification (location) No. of parts in the figures (2): Name of the part This flowchart indicates the disassembly steps to gain (3): Figure Number for reference access to item(s) to be serviced. When reassembling, (4): Identification of parts to be removed, unhooked, follow the steps in reverse order.
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(S-2) (S-1) (S-3) (S-1) (S-2) (S-2) (S-4) [3] VCR Chassis Unit (S-3) (S-2) [1] Top Case (S-1) Fig. D1 (L-2) (L-2) Fig. D3 [4] Jack CBA (S-5) Desolder [2] Front Assembly (L-1) Fig. D2 Fig. D4 1-7-2 HG470DC...
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[7] Cylinder Shield Cylinder Assembly FE Head (S-7) SW507 ACE Head LD-SW Assembly [6] Main CBA [5] Deck Assembly [5] Deck Assembly Cam Gear [6] Main CBA Hole Shaft (S-6) Hole LD-SW [6] Main CBA (S-6) Fig. D6 TOP VIEW From Capstan Motor From...
ELECTRICAL ADJUSTMENT INSTRUCTIONS General Note: "CBA" is an abbreviation for Head Switching Position Adjustment "Circuit Board Assembly." Purpose: NOTE: To determine the Head Switching point during 1.Electrical adjustments are required after replacing playback. circuit components and certain mechanical parts. Symptom of Misadjustment: It is important to do these adjustments only after all repairs and replacements have been com- May cause Head Switching noise or vertical jitter...
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Adjustment Points and Test Points Main CBA Top View AUDIO BLOCK POWER SUPPLY TUNER BLOCK BLOCK Hi-Fi BLOCK VIDEO BLOCK V-OUT POWER SYSCON/TIMER SERVO BLOCK BLOCK TP507 TP502 S-INH RF-SW TP301 C-PB VR501 TP501 SW-POINT TEST POINT INFORMATION : Indicates a test point with a jumper wire across a hole in the PCB. TEST POINTS NOT USED IN ELECTRICAL ADJUSTMENTS Test Point Used in:...
SCHEMATIC DIAGRAMS / CBA'S AND TEST POINTS Standard Notes Notes: WARNING 1. Do not use the part number shown on these draw- ings for ordering. The correct part number is Many electrical and mechanical parts in this chassis shown in the parts list, and may be slightly different have special characteristics.
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Main 1/6 Schematic Diagram Parts Location Guide Ref No. Position Ref No. Position Ref No. Position CAPACITORS CONNECTORS RESISTORS C501 C862 R522 C502 CL501 R523 C506 CL502 R524 C508 CL504 R525 C510 DIODES R526 C511 D501 R527 C512 D502 R528 C513 D552 R529...
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Comparison Chart of IC501 KEY VOLTAGE CHART Main 1/6 Schematic Diagram MODE: SP/REC Pin No. PLAY MODE Models and Marks KEY 1 (7 PIN) KEY 2 (8 PIN) Voltage “ “ = SMD REC MODE MODEL MARK 0.00 ~ 0.51V POWER STOP/EJECT (2.5)
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Comparison Chart of FP562 MATRIX CHART Main 2/6 & Sensor Schematic Diagrams Models and Marks MODE: SP/REC “ “ = SMD PLAY MODE REC MODE MODEL MARK (2.5) VR550/02 THE SAME VOLTAGE FOR INDICATES THAT THE VOLTAGE VR550/07 BOTH PLAY & REC MODES. IS NOT CONSISTENT HERE.
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MAIN 3/6 Schematic Diagram Parts Location Guide Ref No. Position Ref No. Position Ref No. Position Ref No. Position CAPACITORS CAPACITORS TRANSISTORS RESISTORS C251 C347 Q401 R402 C252 C351 Q402 R403 C253 C352 Q403 R404 C254 C401 Q405 R407 C302 C402 Q406 R408...
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Main 3/6 Schematic Diagram MODE: SP/REC “ “ = SMD PLAY MODE REC MODE (2.5) THE SAME VOLTAGE FOR INDICATES THAT THE VOLTAGE BOTH PLAY & REC MODES. IS NOT CONSISTENT HERE. 1-10-9 1-10-10 HG470SCM3...
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Main 4/6 & Jack Schematic Diagrams MODE: SP/REC “ “ = SMD PLAY MODE REC MODE (2.5) INDICATES THAT THE VOLTAGE THE SAME VOLTAGE FOR BOTH PLAY & REC MODES. IS NOT CONSISTENT HERE. HG470SCM4 1-10-11 1-10-12...
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MAIN 4/6 Schematic Diagram Parts Location Guide Ref No. Position CAPACITORS C157 C158 CONNECTORS CL151 CL152 DIODES D153 D154 D155 D156 TRANSISTOR Q153 RESISTOR R158 TEST POINT JACK Schematic Diagram Parts Location Guide Ref No. Position Ref No. Position CAPACITORS TRANSISTORS C101 Q101...
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MAIN 5/6 Schematic Diagram Parts Location Guide Ref No. Position Ref No. Position Ref No. Position CAPACITORS DIODES RESISTORS C002 D023 AA-1 R008 C003 D051 BB-2 R009 C004 D052 CC-3 R011 C005 D053 BB-2 R012 C006 D055 BB-2 R013 C007 D056 AA-2 R014...
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Main 5/6 Schematic Diagram Comparison Chart of Models and Marks MODEL MARK CAUTION ! CAUTION ! VR550/02 MODE: SP/REC PLAY MODE For continued protection against fire hazard, Fixed voltage ( or Auto voltage selectable ) power supply circuit is used in this unit. VR550/07 REC MODE replace only with the same type fuse.
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Main 6/6 Schematic Diagram MODE: SP/REC PLAY MODE REC MODE (2.5) INDICATES THAT THE VOLTAGE THE SAME VOLTAGE FOR BOTH PLAY & REC MODES. IS NOT CONSISTENT HERE. “ “ = SMD 1-10-17 1-10-18 HG470SCM6...
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Main CBA Top View CAUTION ! BECAUSE A HOT CHASSIS GROUND IS PRESENT IN THE POWER CAUTION ! For continued protection against fire hazard, SUPPLY CIRCUIT , AN ISOLATION TRANSFORMER MUST BE USED. Fixed voltage ( or Auto voltage selectable ) power supply circuit is used in this unit. replace only with the same type fuse.
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Main CBA Bottom View CAUTION ! BECAUSE A HOT CHASSIS GROUND IS PRESENT IN THE POWER CAUTION ! For continued protection against fire hazard, SUPPLY CIRCUIT , AN ISOLATION TRANSFORMER MUST BE USED. Fixed voltage ( or Auto voltage selectable ) power supply circuit is used in this unit. replace only with the same type fuse.
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Main CBA Parts Location Guide Ref No. Position Ref No. Position Ref No. Position Ref No. Position Ref No. Position Ref No. Position Ref No. Position Ref No. Position Ref No. Position CAPACITORS CAPACITORS CAPACITORS CAPACITORS RESISTORS RESISTORS RESISTORS RESISTORS C002 C337 C479...
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Jack CBA Top View Jack CBA Parts Location Guide Ref No. Position Ref No. Position CAPACITORS TRANSISTORS C101 Q101 C102 Q102 C103 RESISTORS C104 R101 C105 R103 C107 R104 C108 R106 C109 R108 C110 R109 C111 R110 C112 R112 C113 R113 C115 R115...
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AFV Schematic Diagram Comparison Chart of Models and Marks MODE: SP/REC “ “ = SMD PLAY MODE MODEL MARK REC MODE VR550/02 (2.5) VR550/07 THE SAME VOLTAGE FOR INDICATES THAT THE VOLTAGE VR550/16 IS NOT CONSISTENT HERE. BOTH PLAY & REC MODES. AFV Schematic Diagram Parts Location Guide Ref No.
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AFV CBA Top View AFV CBA Bottom View AFV CBA Parts Location Guide Ref No. Position CAPACITORS DIODE COILS RESISTORS CRYSTAL OSCILLATOR 1-10-30 1-10-29 BHC400F01093...
WAVEFORMS (TP301 of Main CBA) UPPER (TP502 of Main CBA) LOWER C-PB 10mV x 10 RF-SW 0.5V x 10 5msec (J23 of Main CBA) UPPER (TP502 of Main CBA) LOWER V-OUT 0.1V x 10 RF-SW 0.5V x 10 50usec (J23 of Main CBA) V-OUT E-E 10usec 50mV x 10...
SYSTEM CONTROL TIMING CHARTS Mode SW : LD-SW LD-SW Position detection A/D Input voltage Limit Symbol (Calculated voltage) 3.76V~4.50V (4.12V) 4.51V~5.00V (5.00V) 0.00V~0.25V (0.00V) 1.06V~1.50V (1.21V) 0.66V~1.05V (0.91V) 1.99V~2.60V (2.17V) 1.51V~1.98V (1.80V) 3.20V~3.75V (3.40V) 0.26V~0.65V (0.44V) 4.51V~5.00V (5.00V) 2.61V~3.19V (2.97V) Note : Note: RS: Loading FWD (LM-FWD “H”, LM-REV “L”)
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Still/Slow Control Frame Advance Timing Chart 1) SP Mode 18 RF-SW The first rise of RF-SW after a rise in F-AD signal F-AD (Internal Signal) "H" "H" "Z" C-DRIVE "L" "L" Stop detection (T2) Acceleration Detection (T1) Slow Tracking Value PB CTL Reversal Limit Value 20ms...
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2) LP/SLP Mode 18 RF-SW The first rise of RF-SW after a rise in F-AD signal F-AD (Internal Signal) "H" "H" "Z" C-DRIVE "L" "L" Stop detection (T2) Acceleration Detection (T1) Slow Tracking Value PB CTL Reversal Limit Value 20ms 78 C-F/R 16 H-A-SW 15 ROTA...
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EJECT ST-S/ END-S "OFF" CASS.LOAD LD-FWD 0.2s LD-REV 0.7s LD-FWD 0.4s LD-FWD 0.5s LD-REV STOP(A) PLAY LD-FWD PLAY LD-FWD LD-REV 0.2s LD-FWD PLAY PLAY PAUSE (SLOW) LD-FWD STILL(SLOW) PLAY LD-REV 0.2s LD-FWD PLAY STOP /EJECT LD-REV STOP(A) 1-13-4 HG470TI...
IC PIN FUNCTION DESCRIPTIONS IC501( SERVO / SYSTEM CONTROL IC ) Signal Active Function Name Level “H” ≥ 4.5V, “L” ≤ 1.0V SCART 2 RGB 27 OUT RGB- Signal Active Through Control Function THROUGH Name Level Signal Input Signal from Pin 28 OUT LINE- Audio Mute Control IN SC2-IN...
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Signal Active Signal Active Function Function Name Level Name Level Composite IN P-DOWN-L Power Voltage Down IN C-SYNC PULSE Synchronized Pulse Detector Signal SCART 1 8Pin Capstan Motor 59 OUT 8POUT-1 IN C-FG PULSE Output Control Rotation Detection Signal Pulse SCART 2 8Pin N.U.
PRODUCT SAFETY NOTE: Products marked with a h have special characteristics important to safety. Before replacing any of these components, read carefully the product safety notice in this service manual. Don't degrade the safety of the product through improper servicing. NOTES: Parts that not assigned part numbers (-----------) are not available.
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ELECTRICAL PARTS LIST Pos. 12 NC Description C303 ELECTROLYTIC CAP. 1UF/50V M H7 C304 ELECTROLYTIC CAP. 1UF/50V M H7 C305 CHIP CERAMIC CAP. F Z 0.22UF/16V C307 CHIP CERAMIC CAP.(1608) B K 0.047UF/50V C308 CHIP CERAMIC CAP.(1608) B K 0.022UF/50V C309 CHIP CERAMIC CAP.(1608) F Z 0.1UF/50V C310...
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ELECTRICAL PARTS LIST Pos. 12 NC Description C457 ELECTROLYTIC CAP. 10UF/16V M H7 C458 ELECTROLYTIC CAP. 4.7UF/25V M H7 C459 CHIP CERAMIC CAP.(1608) B K 0.01UF/50V C460 CHIP CERAMIC CAP.(1608) B K 4700PF/50V C461 ELECTROLYTIC CAP. 22UF/10V M H7 C462 CHIP CERAMIC CAP.(1608) B K 0.01UF/50V C463 CHIP CERAMIC CAP.(1608) B K 0.01UF/50V...
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ELECTRICAL PARTS LIST Pos. 12 NC Description C704 CHIP CERAMIC CAP.(1608) B K 0.01UF/50V C706 CHIP CERAMIC CAP.(1608) F Z 0.1UF/50V C708 CHIP CERAMIC CAP.(1608) B K 0.01UF/50V C716 CHIP CERAMIC CAP. F Z 0.22UF/16V C717 CHIP CERAMIC CAP. F Z 0.22UF/16V C771 CHIP CERAMIC CAP.(1608) F Z 0.1UF/50V C772...
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Cabinet 2L011 2B18 2L011 2L011 See Electrical Parts List for parts with this mark. Some Ref. Numbers are not in sequence. 2L011 JACK CBA 2L011 2L012 2L022 2L042 2L021 2L021 2L021 2L021 2L051 2L022 2L041 2L021 SENSOR CBA AFV CBA 2L031 2L041 MAIN CBA...
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Packing Some Ref. Numbers are not in sequence. X20A X20B X20C X20D X20E X20F [ A,C ] [ A,C ] [ B ] X36A X36B X36C X45A X20G X20H X20I X20J X20K X36D X36E X36F X45B X36G X36H X36I X45C X36J X36K [ B ]...
PRODUCT SAFETY NOTE: Products marked with a h have special characteristics important to safety. Before replacing any of these components, read carefully the product safety notice in this service manual. Don’t degrade the safety of the product through improper servicing. MECHANICAL PARTS LIST Pos.
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DECK MECHANISM SECTION VIDEO CASSETTE RECORDER Sec. 2: Deck Mechanism Section I Standard Maintenance I Mechanism Alignment Procedures I Disassembly / Assembly of Mechanism I Deck Exploded Views I Deck Parts List TABLE OF CONTENTS STANDARD MAINTENANCE ............. . 2-1-1 SERVICE FIXTURE AND TOOLS .
STANDARD MAINTENANCE Service Schedule of Components H: Hours : Check I: Change Deck Periodic Service Schedule Ref.No. Part Name 1,000 H 2,000 H 3,000 H 4,000 H Cylinder Assembly Loading Motor Assembly Pulley Assembly Tension Lever Assembly B587 ACE Head Assembly B573, B574 Reel S, Reel T Capstan Motor...
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Cleaning Cleaning of ACE Head Clean the head with a cotton swab. Cleaning of Video Head Procedure Clean the head with a head cleaning stick or chamois 1.Remove the top cabinet. cloth. 2.Dip the cotton swab in 90% isopropyl alcohol and Procedure clean the ACE Head.
SERVICE FIXTURE AND TOOLS J-1-1, J-1-2 Ref. No. Name Part No. Adjustment J-1-1 Alignment Tape 9965 000 14514 Head Adjustment of ACE Head J-1-2 Alignment Tape 9965 000 14516 Azimuth and X Value Adjustment of ACE Head / (2 Head model) Adjustment of Envelope Waveform 9965 000 14515 (4 Head model)
MECHANICAL ALIGNMENT PROCEDURES Explanation of alignment for the tape to correctly run B. Method to place the Cassette Holder in the tape- starts on the next page. Refer to the information below loaded position without a cassette tape on this page if a tape gets stuck, for example, in the 1.
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1. Tape Interchangeability Alignment Note: To do these alignment procedures, make sure that the Tracking Control Circuit is set to the preset position every time a tape is loaded or unloaded. (Refer to page 2-3-4, procedure 1-C, step 2.) Equipment required: Dual Trace Oscilloscope VHS Alignment Tape (9965 000 14515) Guide Roller Adj.
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1-A. Preliminary/Final Checking and 4. If creasing or snaking is apparent, adjust the Tilt Alignment of Tape Path Adj. Screw of the ACE Head. (Fig. M6) Purpose: To make sure that the tape path is well stabilized. Azimuth Adj. Screw Symptom of Misalignment: If the tape path is unstable, the tape will be damaged.
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5. To shift the CTL waveform, press CH UP or CH 5. When Guide Rollers [2] and [3] (Refer to Fig. M3) DOWN button on the remote control unit. Then are aligned properly, there is no envelope drop make sure that the maximum output position of PB either at the beginning or end of track as shown in ±...
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1-D. Azimuth Alignment of Audio/Con- trol/ Erase Head Purpose: To correct the Azimuth alignment so that the Audio/ Control/Erase Head meets tape tracks properly. Symptom of Misalignment: If the position of the Audio/Control/Erase Head is not properly aligned, the Audio S/N Ratio or Frequency Response will be poor.
DISASSEMBLY/ASSEMBLY PROCEDURES OF DECK MECHANISM Before following the procedures described below, be sure to remove the deck assembly from the cabinet. (Refer to CABINET DISASSEMBLY INSTRUCTIONS on page 1-7-1.) All the following procedures, including those for adjustment and replacement of parts, should be done in Eject mode;...
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REMOVAL INSTALLATION STEP START- REMOVE/*UNHOOK/ /LOC. PART ADJUSTMENT Fig. No. UNLOCK/RELEASE/ CONDITION UNPLUG/DESOLDER BT Arm DM2H, DM14H *(P-5) [33] [26] Loading Arm (SP) (+)Refer to Alignment [34] [26] DM2H, DM14H Assembly Sec.Page 2-5-1 Loading Arm (TU) (+)Refer to Alignment [35] [34] DM2H, DM14H Assembly...
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(S-1) (S-1) (L-1) (L-3) (L-2) (S-1A) (P-1) Installation of [3] and [6] First, insert [6] diagonally in [3] as shown below. Then, install [6] in [3] while pushing (L-1) in a direction of arrow. After installing [6] in [3], confirm that pin A of [3] enters hole A of [6] properly.
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[11] (S-4A) (L-4) [49] (P-3) [13] [50] Removal of [11] [12] (L-12) 1) Remove screw (S-4A). 2) Unhook spring (P-2). [10] Release (L-4) while (P-2) holding [12] with a finger. Loosen a finger holding [12] and remove [11]. (S-2) Pin of [12] Pin of [10] Groove of [27] When reassembling [10] and...
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Installation of [13] and [12] (S-5) [14] (S-6) [13] [15] Hook spring (P-3) up to [12] and [13], then install then to (P-3) the specified position so that [12] will be floated slightly while holding [12] and [13]. (Refer to Fig. A.) [12] Fig.
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(C-1) turn [22] (S-8) [20] (L-6) [21] [19] Cap Belt Pin on [22] Installation position of Cap Belt [20] Cap Belt [27] Position of pin on [22] Fig. DM12H [19] View for A Fig. DM11H 2-4-7 U29PHSDA...
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Installation of [26] [26] (C-3) Position of Mode Lever when installed Pin of [33] Pin of [37] (S-9) Pin of [36] (L-8) [23] (L-7) Bottom View [24] (C-5) [26] (C-4) (C-2) [28] [27] [25] [29] [30] Align [26] and [27] as shown. First groove on [27] [27] First tooth on [47]...
ALIGNMENT PROCEDURES OF MECHANISM The following procedures describe how to align the Alignment 1 individual gears and levers that make up the tape load- Loading Arm (SP) and (TU) Assembly ing/unloading mechanism. Since information about the state of the mechanism is provided to the System Install Loading Arm (SP) and (TU) Assembly so that Control Circuit only through the Mode Switch, it is their triangle marks point to each other as shown in...